What is Gypsum ?

What is Gypsum ?
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1 Answer

Answer :

Moist calcium sulphate is called gypsum. Pure white gypsum is rarely found. Gypsum is a very important element for the plant body. It is used as fertilizer. In the production of plaster of Paris and ammonium sulphate , gypsum is used to prepare the floor of the building , to increase the weight and smooth the paper.
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Related questions

Why is gypsum used in cement ?

Description : Why is gypsum used in cement ?

Last Answer : Gypsum is used to make cement slowly solidify. When the cement solidifies too fast, the amount of space inside the cement increases , the cement setting becomes weak and brittle. The use of gypsum in cement strengthens the setting of cement. As a result the cement is hard and long lasting.

What are the signs of gypsum ?

Description : What are the signs of gypsum ?

Last Answer : signal CaSO4.2H2O

Gypsum is used for improvement of: (1) Alkaline soils (2) Saline soils (3) (3) Podsols (4) (4) Acidic soils

Description : Gypsum is used for improvement of: (1) Alkaline soils (2) Saline soils (3) (3) Podsols (4) (4) Acidic soils

Last Answer : (2) Saline soils Explanatioqn: Gypsum is calcium sulfate which is essential to the sustainability of most irrigated soils. Irrigated land eventually leads to sodieity and salinity unless extreme care is ... improves sodic (saline) soils by removing sodium from the soil and replacing it with calcium.

Chemical composition of cement is – (1) Limestone and Clay (2) Limestone, Clay and Gypsum (3) Limestone and Gypsum (4) Clay and Gypsum

Description : Chemical composition of cement is – (1) Limestone and Clay (2) Limestone, Clay and Gypsum (3) Limestone and Gypsum (4) Clay and Gypsum

Last Answer : (2) Limestone, Clay and Gypsum Explanation: The two important raw materials used for the preparation of cement are : • Limestone : The chemical formula of limestone is CaCO3 and it is used in the manufacture of cement just to provide CaO.

Bleaching powder is made from - (1) Sulphur dioxide and gypsum (2) Chlorine and Charcoal (3) Soda ash and lime (4) Lime and Chlorine

Description : Bleaching powder is made from - (1) Sulphur dioxide and gypsum (2) Chlorine and Charcoal (3) Soda ash and lime (4) Lime and Chlorine

Last Answer : (4) Lime and Chlorine Explanation: The gas which is used in the preparation of bleaching powder is chlorine. It is a mixture of lime and calcium chloride.

'Plaster of Paris' is made by partial dehydration of – (1) epsom salt (2) gypsum salt (3) blue vitriol (4) green vitriol

Description : 'Plaster of Paris' is made by partial dehydration of – (1) epsom salt (2) gypsum salt (3) blue vitriol (4) green vitriol

Last Answer : (2) gypsum salt Explanation: Plaster is a building material used for coating walls and ceilings. Plaster starts as a dry powder similar to mortar or cement and like those materials it is ... sandpaper. These characteristics make plaster suitable for a finishing, rather than a load-bearing material.

Mortar is a mixture of water sand and (1) Slaked lime (2) Quick lime (3) Limestone (4) Gypsum

Description : Mortar is a mixture of water sand and (1) Slaked lime (2) Quick lime (3) Limestone (4) Gypsum

Last Answer : (1) Slaked lime Explanation: Mortar is a workable paste used to bind construction blocks together and fill the gaps between them. The blocks may be stone, brick, cinder blocks, etc. Mortar becomes hard ... Mortar can also be used to fix, or point, masonry when the original mortar has washed away.

On heating, Gypsum loses certain percentage of its water content and becomes (1) Chalk (2) Calcium sulphate (3) Plaster of Paris (4) a pearl

Description : On heating, Gypsum loses certain percentage of its water content and becomes (1) Chalk (2) Calcium sulphate (3) Plaster of Paris (4) a pearl

Last Answer : (3) Plaster of Paris Explanation: Plaster of paris, quick-setting gypsum plaster consisting of a fine white powder (calcium sulfate hemihydrate), which hardens when moistened and allowed to dry.

Which is/ are the important raw materials in cement industry? (1) Limestone (2) Gypsum and Clay (3) Clay (4) Limestone and Clay

Description : Which is/ are the important raw materials in cement industry? (1) Limestone (2) Gypsum and Clay (3) Clay (4) Limestone and Clay

Last Answer : (4) Limestone and Clay Explanation: Limestone Claimed Clay Cement is a low-carbon alternative to the standard Portland cement. LC3 can reduce CO2 emissions related to cement manufacturing of cement by reducing the amount of clinker, replacing it with limestone and claimed clays.

How does the setting of cement takes place & what is the role of gypsum in setting of cement ?

Description : How does the setting of cement takes place & what is the role of gypsum in setting of cement ?

Last Answer : Ans When mixed with water, the setting of cement takes place to give a hard mass. This is due to the hydration of the molecules of the constituents and their Rearrangement. The purpose of adding gypsum is only to slow down the process of setting of the cement so that it gets sufficiently hardened.

How does the setting of cement takes place & what is the role of gypsum in setting of cement ?

Description : How does the setting of cement takes place & what is the role of gypsum in setting of cement ?

Last Answer : When mixed with water, the setting of cement takes place to give a hard mass. This is due to the hydration of the molecules of the constituents and their rearrangement. The purpose of adding gypsum is only to slow down the process of setting of the cement so that it gets sufficiently hardened. 

How is Calcium Sulphate (Plaster of Paris), CaSO4·½ H2O (hemihydrate of calcium sulphate) prepared from gypsum?

Description : How is Calcium Sulphate (Plaster of Paris), CaSO4·½ H2O (hemihydrate of calcium sulphate) prepared from gypsum? 

Last Answer : It is obtained when gypsum, CaSO4·2H2O, is heated to 393 K.   Above 393 K, no water of crystallisation is left and anhydrous calcium sulphate, CaSO4 is formed. This is known as dead burnt plaster'. ... quantity of water it forms a plastic mass that gets into a hard solid in 5 to 15 minutes.  

Chemical composition of cement is (1) Limestone and Clay (2) Limestone, Clay and Gypsum (3) Limestone and Gypsum (4) Clay and Gypsum

Description : Chemical composition of cement is (1) Limestone and Clay (2) Limestone, Clay and Gypsum (3) Limestone and Gypsum (4) Clay and Gypsum

Last Answer :  Limestone, Clay and Gypsum

Gypsum is used for improvement of: (1) Alkaline soils (2) Saline soils (3) Podsols (4) Acidic soils

Description : Gypsum is used for improvement of: (1) Alkaline soils (2) Saline soils (3) Podsols (4) Acidic soils

Last Answer : Saline soils

The addition of gypsum to portland cement helps in : (1) increasing the strength of cement (2) rapid setting of cement (3) preventing rapid setting of cement (4) reduction in the cost of cement

Description : The addition of gypsum to portland cement helps in : (1) increasing the strength of cement (2) rapid setting of cement (3) preventing rapid setting of cement (4) reduction in the cost of cement

Last Answer : preventing rapid setting of cement

Mortar is a mixture of water, sand and (1) Slaked lime (2) Quick lime (3) Limestone (4) Gypsum

Description : Mortar is a mixture of water, sand and (1) Slaked lime (2) Quick lime (3) Limestone (4) Gypsum

Last Answer : Slaked lime

‘Plaster of Paris’ is made by partial dehydration of (1) epsom salt(2) gypsum salt (3) blue vitriol (4) green vitriol

Description : ‘Plaster of Paris’ is made by partial dehydration of (1) epsom salt(2) gypsum salt (3) blue vitriol (4) green vitriol

Last Answer : gypsum salt

Do California homes in fire zones use gypsum board / dry wall / sheet rock for their walls?

Description : Do California homes in fire zones use gypsum board / dry wall / sheet rock for their walls?

Last Answer : Fire-proof like cinder block walls and metal roofs. No wood or flammable material on the outside?

where can i buy agricultural gypsum

Description : where can i buy agricultural gypsum

Last Answer : Need Answer

Which state is the largest producer of Gypsum? -Do You Know?

Description : Which state is the largest producer of Gypsum? -Do You Know?

Last Answer : Rajasthan is by far the largest producer of gypsum in India [99 per cent of the total production of India]

What are the chemical signals of gypsum ?

Description : What are the chemical signals of gypsum ?

Last Answer : Chemical signal of gypsum CaSO4.2H2O.

Gypsum Of Signal What ?

Last Answer : Gypsum Of Signal CaSO4 .2H2O

What physical characteristics of gypsum can be described as nonmetallic?

Description : What physical characteristics of gypsum can be described as nonmetallic?

Last Answer : luster

Which of the following is a non-metallic mineral? (a) Bauxite (b) Magnesium (c) Gypsum (d) Manganese

Description : Which of the following is a non-metallic mineral? (a) Bauxite (b) Magnesium (c) Gypsum (d) Manganese

Last Answer : Ans: (c)

Which of the following can be used to correct acidic soil? (a) Gypsum (b) Lime (c) Vegetable compost (d) Calcium superphosphate

Description : Which of the following can be used to correct acidic soil? (a) Gypsum (b) Lime (c) Vegetable compost (d) Calcium superphosphate

Last Answer : Ans: (b)

Hazaribagh district in Jharkhand has rich deposits of (a) gold (b) mica (c) gypsum (d) lead

Description : Hazaribagh district in Jharkhand has rich deposits of (a) gold (b) mica (c) gypsum (d) lead

Last Answer : Ans: (b)

Economically exploitable Gypsum occurs in (a) Andhra Pradesh (b) Bihar (c) Rajasthan (d) Maharashtra

Description : Economically exploitable Gypsum occurs in (a) Andhra Pradesh (b) Bihar (c) Rajasthan (d) Maharashtra

Last Answer : Ans: (c)

Match the following : [IAS 2007] District Rich source of A. Almora 1. Gypsum B. Bikaner 2. Kyanite C. Singhbhum 3. Maqnesite A B C (a) 3 1 2 (b) 3 2 1 (c) 2 1 3 (d) 1 3 2

Description : Match the following : [IAS 2007] District Rich source of A. Almora 1. Gypsum B. Bikaner 2. Kyanite C. Singhbhum 3. Maqnesite A B C (a) 3 1 2 (b) 3 2 1 (c) 2 1 3 (d) 1 3 2

Last Answer : Ans: (a)

Gypsum contains

Description : Gypsum contains

Last Answer : Ans. 29.2%Ca and 18.6%S

Gypsum (CaSO4 .2H2O) is used for the reclamation of

Description : Gypsum (CaSO4 .2H2O) is used for the reclamation of

Last Answer : Ans. Sodic/Alkaline soils

Which of the following mineral is used in cement industry and plaster of paris? A. Marble B. China Clay C. Gypsum D. Fire Clay

Description : Which of the following mineral is used in cement industry and plaster of paris? A. Marble B. China Clay C. Gypsum D. Fire Clay

Last Answer : ANSWER: C

Which mineral is mostly found in northern and western mountains of Pakistan? A. Chromite B. Lime-stone C. China Clay D. Gypsum

Description : Which mineral is mostly found in northern and western mountains of Pakistan? A. Chromite B. Lime-stone C. China Clay D. Gypsum

Last Answer : ANSWER: B

Hyderabad has deposits of _____. A. Chromite B. Gypsum C. Fire Clay D. Lime-stone

Description : Hyderabad has deposits of _____. A. Chromite B. Gypsum C. Fire Clay D. Lime-stone

Last Answer : ANSWER: D

The extinct volcano "Koh-i-Sultan" in Balochistan contains the deposits of: A. Chromite B. Sulphur C. Gypsum D. Bauxie

Description : The extinct volcano "Koh-i-Sultan" in Balochistan contains the deposits of: A. Chromite B. Sulphur C. Gypsum D. Bauxie

Last Answer : ANSWER: B

Chromium obtained from chromite is used in making. A. Gypsum B. Pesticide C. Stainless Steel D. Fertilizer

Description : Chromium obtained from chromite is used in making. A. Gypsum B. Pesticide C. Stainless Steel D. Fertilizer

Last Answer : ANSWER: B

Kalabagh is famous for mineral of _____. A. Iron B. Salt C. Sulphur D. Gypsum

Description : Kalabagh is famous for mineral of _____. A. Iron B. Salt C. Sulphur D. Gypsum

Last Answer : ANSWER: A

Which of the following mineral is used for food and in chemical industries? A. Fire Clay B. Chromite C. Rock Salt D. Gypsum

Description : Which of the following mineral is used for food and in chemical industries? A. Fire Clay B. Chromite C. Rock Salt D. Gypsum

Last Answer : ANSWER: C

Which mineral is mostly found in northern and western mountains of Pakistan? A. Chromite B. Lime-stone C. China Clay D. Gypsum

Description : Which mineral is mostly found in northern and western mountains of Pakistan? A. Chromite B. Lime-stone C. China Clay D. Gypsum

Last Answer : ANSWER: B

Which one of the following is a metal? A. Gypsum B. Iron C. Limestone D. Granite

Description : Which one of the following is a metal? A. Gypsum B. Iron C. Limestone D. Granite

Last Answer : ANSWER: B

Kalabagh is famous for mineral of _____. A. Iron B. Salt C. Sulphur D. Gypsum

Description : Kalabagh is famous for mineral of _____. A. Iron B. Salt C. Sulphur D. Gypsum

Last Answer : ANSWER: A

Chromium obtained from chromite is used in making. A. Gypsum B. Pesticide C. Stainless Steel D. Fertilizer

Description : Chromium obtained from chromite is used in making. A. Gypsum B. Pesticide C. Stainless Steel D. Fertilizer

Last Answer : ANSWER: B

Which of the following mineral is used for food and in chemical industries? A. Fire Clay B. Chromite C. Rock Salt D. Gypsum

Description : Which of the following mineral is used for food and in chemical industries? A. Fire Clay B. Chromite C. Rock Salt D. Gypsum

Last Answer : ANSWER: C

Which of the following mineral is used in cement industry and plaster of paris? A. Marble B. China Clay C. Gypsum D. Fire Clay

Description : Which of the following mineral is used in cement industry and plaster of paris? A. Marble B. China Clay C. Gypsum D. Fire Clay

Last Answer : ANSWER: C

Minerals Hyderabad has deposits of _____. A. Chromite B. Gypsum C. Fire Clay D. Lime-stone

Description : Minerals Hyderabad has deposits of _____. A. Chromite B. Gypsum C. Fire Clay D. Lime-stone

Last Answer : ANSWER: D

Iron Which one of the following is a metal? A. Gypsum B. Iron C. Limestone D. Granite

Description : Iron Which one of the following is a metal? A. Gypsum B. Iron C. Limestone D. Granite

Last Answer : ANSWER: B

The extinct volcano "Koh-i-Sultan" in Balochistan contains the deposits of: A. Chromite B. Sulphur C. Gypsum D. Bauxie

Description : The extinct volcano "Koh-i-Sultan" in Balochistan contains the deposits of: A. Chromite B. Sulphur C. Gypsum D. Bauxie

Last Answer : ANSWER: B

Which one of the following is a metal? A. Gypsum B. Iron C. Limestone D. Granite

Description : Which one of the following is a metal? A. Gypsum B. Iron C. Limestone D. Granite

Last Answer : ANSWER: B

What is used in making of alloys? A. Lime-stone B. Chromium C. Granite D. Gypsum

Description : What is used in making of alloys? A. Lime-stone B. Chromium C. Granite D. Gypsum

Last Answer : ANSWER: B

Which one of the following is a metal? A. Gypsum B. Iron C. Limestone D. Granite

Description : Which one of the following is a metal? A. Gypsum B. Iron C. Limestone D. Granite

Last Answer : ANSWER: B

Gypsum is added to the soil? (a) To increase the alkalinity (b) To decrease the acidity (c) To decrease the alkalinity (d) As an insecticide

Description : Gypsum is added to the soil? (a) To increase the alkalinity (b) To decrease the acidity (c) To decrease the alkalinity (d) As an insecticide

Last Answer : Ans:(b)